Cita APA (7th ed.)
Graham, J. (1983). Erosion. Princeton University Press.
Cita Chicago (17th ed.)
Graham, Jorie. Erosion. Princeton, N.J.: Princeton University Press, 1983.
Cita MLA (9th ed.)
Graham, Jorie. Erosion. Princeton University Press, 1983.
Atenció: Aquestes cites poden no estar 100% correctes.